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<html lang="en">
<head>
    <meta charset="UTF-8">
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    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        function Person(name, sex) {
            this.name = name;
            this.sex = sex;
        }
        // 添加方法
        Person.prototype.show = function() {
            console.log('this is show');
        }
        // 产生实例对象
        let xiaoming = new Person('xiaoming', 'nan');
        console.log(xiaoming);
        xiaoming.show();
    </script>
</body>
</html>